With the very real situation involving watchOS betas not being able to be downgraded (without sending the watch in to Apple), why even chance it?
I think the profile option is either just a holdover from the DP beta version, or serves to keep everything matched with the official 1.01 and iOS 9 beta.
Personally, even with the official builds of watchOS, I'll be waiting a few days before upgrading. Apple's recent history of software rollouts hasn't been the smoothest, and having to mail my watch all the way back to the States from Germany - because of a botched installation, game-stopping bugs, etc. and no way to downgrade ourselves - isn't an option.